42nd Street

42nd Street most commonly refers to:
 * 42nd Street (Manhattan), a major crosstown street in the New York City borough of Manhattan

It may also refer to:
 * 42nd Street (film), a 1933 American Warner Bros. musical film with lyrics by Al Dubin, and music by Harry Warren
 * 42nd Street, a 1932 novel by Bradford Ropes which was adapted for the 1933 film and subsequent musical
 * "42nd Street" (song), title song from the film
 * 42nd Street (musical), a 1980 musical with a book by Michael Stewart and Mark Bramble

New York City Subway

 * Times Square–42nd Street station, a station complex consisting of:
 * Times Square – 42nd Street (IRT Broadway – Seventh Avenue Line); serving the trains
 * Times Square – 42nd Street (BMT Broadway Line); serving the trains
 * Times Square (IRT 42nd Street Shuttle); the northern terminal of the train
 * Times Square (IRT Flushing Line), serving the trains
 * 42nd Street – Port Authority Bus Terminal (IND Eighth Avenue Line), serving the trains
 * 42nd Street–Bryant Park/Fifth Avenue station, a station complex consisting of:
 * 42nd Street – Bryant Park (IND Sixth Avenue Line), serving the trains
 * Fifth Avenue (IRT Flushing Line), serving the trains
 * Grand Central–42nd Street station, a station complex consisting of:
 * Grand Central (IRT 42nd Street Shuttle), the southern terminal of the train
 * Grand Central – 42nd Street (IRT Lexington Avenue Line); serving the trains
 * Grand Central (IRT Flushing Line), serving the trains
 * 42nd Street station (IRT Second Avenue Line), demolished station of the Second Avenue elevated
 * 42nd Street station (IRT Third Avenue Line), demolished station of the Third Avenue elevated
 * 42nd Street station (IRT Sixth Avenue Line), demolished station of the Sixth Avenue elevated
 * 42nd Street station (IRT Ninth Avenue Line), demolished station of the Ninth Avenue elevated
 * 42nd Street (IND Second Avenue Line), planned station of the Second Avenue subway

The IRT Flushing Line and IRT 42nd Street Shuttle run under 42nd Street in Manhattan.